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Color coated aluminum coil introduction,Color coating process

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color coated aluminum coil

Color coated aluminum coil, also known as painted aluminum coil, coated aluminum coil. It not only has excellent appearance, rich colors, but also has a good gloss and smoothness, as well as superior texture and feel, can increase the sense of hierarchy and three-dimensional, so it is widely used for decoration. High quality color coated aluminum coil can have long last using period, so the producing process is the key of quality assurance.

color coated aluminum coil

Color coated aluminum coil producing process

1. The first step: producing aluminum coil

It’s work principle is pre-treating aluminum coil before coating. Firstly, clean up lubricants, antioxidant oil and a variety of dirt attached on surface of the layer in rolling process, remove the silicon, magnesium, copper and other impurities sedimentation on the surface of the aluminum material. Then, add some chemical raw materials for the treatment of aluminum coil. So that the surface can from the honeycomb-like oxide film with dense structure, can make the paint and aluminum coil closely together with good adhesion in rolling painting process.


2.The second step: coating baking

Transport the completion aluminum coil to the coating line, coated with the customer specified color. The first stage, with a precision three-roll reverse roller coater, in a closed dust-free state for precision coating, control coating thickness and appearance quality. The second stage, baking, divided into four furnace area, set different temperature, baking the aluminum coil after painting. Through the high temperature baking the paint molecules linked and curing, so that the solvent resistance, hardness, flexibility and weather resistance of the painting layer are the best status. The color coated aluminum coil has good gloss, adhesion and corrosion resistance.

Mingtai aluminum sheet manufacturer can manufacture and supply high quality 1000 series-8000 series aluminum sheet/plate/coil/foil with 18 years experience.


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